Correction

June 06, 1997

The National Labor Relations Board did not issue any rulings against school bus drivers for Vancom Inc.; the agency did not certify a recent vote held by the drivers. A headline on a story about the bus drivers Thursday on Page B1 inaccurately described the labor board's position. Also, John Cotter, a spokesman for the NLRB, said workers are free to join a union at any time, but their company is not obligated to recognize it unless a vote establishing the union is conducted and certified by the agency. His comments were reported incorrectly in the story.